将 Windows 家庭版升级到 Windows 专业版 - Microsoft 支持
了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版，包括如何使用有效产品密钥或 Microsoft Store。
打开或关闭 Microsoft Defender 防火墙 - Microsoft 支持
即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：
Description of Microsoft System Information (Msinfo32.exe) Tool
Summary. Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.
Apply sensitivity labels to your files and email - Microsoft Support
You can apply sensitivity labels to your files and emails to keep them compliant with your organization's information protection policies.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Outlook on the web, Excel for iPad, Word for iPad, PowerPoint for iPad, Excel for iPhone, Word for iPhone, PowerPoint for iPhone, Word for Android tablets, Excel for Android tablets, PowerPoint for Android tablets, Excel for Android phones, New Outlook for Windows, Outlook for Android, Outlook for iOS, PowerPoint for Android phones, Word for Android phones
June 11, 2024—KB5039227 (OS Build 20348.2527)
Windows Server, version 23H2; July 9, 2024—KB5040438 (OS Build 25398.1009) June 11, 2024—KB5039236 (OS Build 25398.950) May 14, 2024—KB5037781 (OS Build 25398.887)
What is Smart App Control? - Microsoft Support
Smart App Control is a feature of Windows 11 that helps to block malicious, untrusted, or potentially unwanted apps from running on your device.
Display requirements for HDR video in Windows - Microsoft Support
Learn how to stream HDR video in Windows. Find out the display, PC, and graphics card requirements for streaming HDR video.
检查你的 DirectX 版本 - Microsoft 支持
检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。
Office Help & Training
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如何使用 Windows 11 中的任务栏 - Microsoft 支持
了解如何使用 Windows 11 中的任务栏功能。 使用任务栏设置隐藏任务栏、固定应用、更改位置等。